121413650066 has 32 divisors (see below), whose sum is σ = 185707124400. Its totient is φ = 59518126080.

The previous prime is 121413650053. The next prime is 121413650087. The reversal of 121413650066 is 660056314121.

It can be written as a sum of positive squares in 8 ways, for example, as 13346949841 + 108066700225 = 115529^2 + 328735^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75458270 + ... + 75459878.

Almost surely, 2^121413650066 is an apocalyptic number.

121413650066 is a deficient number, since it is larger than the sum of its proper divisors (64293474334).

121413650066 is a wasteful number, since it uses less digits than its factorization.

121413650066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 121413650066 its reverse (660056314121), we get a palindrome (781469964187).

The spelling of 121413650066 in words is "one hundred twenty-one billion, four hundred thirteen million, six hundred fifty thousand, sixty-six".